Shoreliners are a class of locomotive-hauled rail car used by the Metro-North Railroad. They are similar to the Comet coaches used by New Jersey Transit. Ownership of the fleet is split between the Metropolitan Transportation Authority (MTA) and the Connecticut Department of Transportation, as part of the latter's operating agreement with the MTA. MTA coaches have blue window bands, while CTDOT coaches have red ones. Many of the Shoreliner cars are named in honor of people and places significant to their service area, such as The Connecticut Yankee and Washington Irving.

Metro-North Railroad, trading as MTA Metro-North Railroad, is a suburban commuter rail service operated by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York. Metro-North serves the New York Metropolitan Area, running service between New York City and its northern suburbs in New York and Connecticut, including Port Jervis, Spring Valley, Poughkeepsie, Yonkers, New Rochelle, Mount Vernon, White Plains, Southeast and Wassaic in New York and Stamford, New Canaan, Danbury, Bridgeport, Waterbury, and New Haven in Connecticut. Service in Connecticut is operated under contract with the Connecticut Department of Transportation. Metro-North also provides local rail service within the New York City boroughs of Manhattan and the Bronx.